Another thing to consider is the source of the code. If this was read from a commercial device then it could be subject to copyright which often states you are not allowed to "decompile or disassemble" the code.

Another thing to consider is the source of the code. If this was read from a commercial device then it could be subject to copyright which often states you are not allowed to "decompile or disassemble" the code.

Just my $0.02 worth.

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Totally agree.

You can actually provide some top protection for any work that you do for flash-based MCUs. It is called a suicide technique, whereas if the MCU detects that its trying to be read (its program pin changing state) -- then it self erases its flash memory.